Influence of vitamin E tocopherol polyethylene glycol succinate 1000 on baohuoside I across membrane transport of Caco-2 monolayer model A putative 6-transmembrane nitrate transporter OsNRT1.1b plays a key role in rice under low nitrogen K+ retention in leaf mesophyll, an overlooked component of salinity tolerance mechanism: A case study for barley Influence of vitamin E tocopherol polyethylene glycol succinate 1000 on baohuoside I across membrane transport of Caco-2 monolayer model